NEURAL VISUAL CODING--IMAGE TO OBJECT REPRESENTATION

神经视觉编码——图像到对象的表示

• 批准号: 2838254
• 负责人: JOACHIM RUDIGER VON DER HEYDT
• 金额: $ 37.73万
• 依托单位: JOHNS HOPKINS UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1979
• 资助国家: 美国
• 起止时间: 1979-06-01 至 1999-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2838254
• 关键词: Macaca mulatta; brain electrical activity; electrophysiology; form /pattern perception; memory; neural information processing; psychophysics; stimulus /response; visual cortex; visual stimulus

The broad aim for the next five years is to find a physiological approach to a central question of perception: the conception and representation of object& Experiments are proposed that will test the hypothesis of temporary (episodic) object representations in vision which are thought to be the intermediate stage between the image processing in visual cortex and the processes of object recognition and memory. The experiments are aimed at distinguishing between several alternative theories on the nature of such representations. Central to the project is the "binding problem", i.e., the question of how the system associates the features, attributes, or parts that belong to one object when several objects are present in a scene, in which form and for how long it represents this information, how it retrieves information from previous moments in the case of moving or changing objects, and how it keeps track of object identity. Answers to these questions are important for understanding perception and consciousness, and the function of the cerebral cortex in general. Specifically, they will contribute to a better understanding of visual disorders of central origin. A new behavioral paradigm and new visual test displays will be used in combination with multi-electrode extracellular neuron recordings to study the formation and decay of object representations and their use in recognition and identification of objects. The emphasis will be on recordings from visual area V4 and the inferior temporal cortex Various methods of spike train analysis will be used to analyze the patterns of neuronal responses, with particular attention to temporal coherence within and between neurons. Current theories of image segmentation, feature binding, and object representation will be evaluated, and new models developed, on the basis of the results.

接下来五年的广泛目的是找到一种生理方法 核心感知问题：概念和代表 提出了对象和实验，以检验 视觉中的临时（情节）对象表示 成为视觉中图像处理之间的中间阶段 皮层以及对象识别和内存的过程。这 实验旨在区分几种替代方案 关于这种表示的性质的理论。项目中心 是“绑定问题”，即系统如何关联的问题 几个物体的功能，属性或属于一个对象的部分 物体存在于一个场景中，形式以及多长时间 代表此信息，如何从上一个信息中检索信息 在移动或改变对象的情况下，以及如何保持跟踪 对象身份。 这些问题的答案对于理解感知和 意识和大脑皮质的功能一般。 具体而言，他们将有助于更好地理解视觉 中心疾病。 新的行为范式和新的视觉测试显示将在 与多电极外神经元记录的结合进行研究 对象表示的形成和衰减及其在 对象的识别和识别。重点将在 视觉区域V4和下颞皮质的录音各种 尖峰火车分析的方法将用于分析模式 神经元反应，特别注意时间连贯性 神经元内和之间。图像分割的当前理论， 将评估功能绑定和对象表示形式，并进行新 基于结果开发的模型。